1 files changed, 0 insertions, 58 deletions
diff --git a/Alc/filters/nfc.h b/Alc/filters/nfc.h
deleted file mode 100644
index b656850a..00000000
--- a/Alc/filters/nfc.h
+++ /dev/null
@@ -1,58 +0,0 @@
-#ifndef FILTER_NFC_H
-#define FILTER_NFC_H
-
-struct NfcFilter1 {
-    float base_gain, gain;
-    float b1, a1;
-    float z[1];
-};
-struct NfcFilter2 {
-    float base_gain, gain;
-    float b1, b2, a1, a2;
-    float z[2];
-};
-struct NfcFilter3 {
-    float base_gain, gain;
-    float b1, b2, b3, a1, a2, a3;
-    float z[3];
-};
-struct NfcFilter4 {
-    float base_gain, gain;
-    float b1, b2, b3, b4, a1, a2, a3, a4;
-    float z[4];
-};
-
-class NfcFilter {
-    NfcFilter1 first;
-    NfcFilter2 second;
-    NfcFilter3 third;
-    NfcFilter4 fourth;
-
-public:
-    /* NOTE:
-     * w0 = speed_of_sound / (source_distance * sample_rate);
-     * w1 = speed_of_sound / (control_distance * sample_rate);
-     *
-     * Generally speaking, the control distance should be approximately the
-     * average speaker distance, or based on the reference delay if outputing
-     * NFC-HOA. It must not be negative, 0, or infinite. The source distance
-     * should not be too small relative to the control distance.
-     */
-
-    void init(const float w1) noexcept;
-    void adjust(const float w0) noexcept;
-
-    /* Near-field control filter for first-order ambisonic channels (1-3). */
-    void process1(float *RESTRICT dst, const float *RESTRICT src, const int count);
-
-    /* Near-field control filter for second-order ambisonic channels (4-8). */
-    void process2(float *RESTRICT dst, const float *RESTRICT src, const int count);
-
-    /* Near-field control filter for third-order ambisonic channels (9-15). */
-    void process3(float *RESTRICT dst, const float *RESTRICT src, const int count);
-
-    /* Near-field control filter for fourth-order ambisonic channels (16-24). */
-    void process4(float *RESTRICT dst, const float *RESTRICT src, const int count);
-};
-
-#endif /* FILTER_NFC_H */